Home / 27,692.58-38,215.50-15,117.34

Finding the Fourth Proportional to 27,692.58, 38,215.50 and 15,117.34

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Solution

The fourth proportional to 27,692.58, 38,215.50 and 15,117.34 is: 20,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,692.58 : 38,215.50 = 15,117.34 : x
  2. Step 2: Convert to fraction form
    27,692.58/38,215.50 = 15,117.34/x
  3. Step 3: Cross multiply
    27,692.58x = 38,215.50 × 15,117.34
  4. Step 4: Simplify right side
    27,692.58x = 577,716,706.77
  5. Step 5: Solve for x
    x = 577,716,706.77/27,692.58
  6. Step 6: Final answer
    x = 20,861.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.